Self-priming-pump equipped packaging bottle

Abstract

A self-priming-pump-equipped packaging bottle includes a tubular bottle body containing therein an upper seal assembly, a lower seal assembly, and piston from top to bottom. The upper and lower seal assemblies and the tubular bottle body form a closed material-feeding chamber. The lower seal assembly, the piston, and the tubular bottle body form a closed material-storing chamber. The lower seal assembly primarily has a seal seat with a through hole and an elastic sealing gasket covering the through hole from above. The upper seal assembly has an umbrella-shaped member, a hollow material-feeding column, a support post, and an end sealing cap. The end sealing cap is fixed in the umbrella-shaped member through the support post. The hollow material-feeding column's bottom surface, the support post, and the end sealing cap form a material outlet. The umbrella-shaped member lower end is in interference fit with the seal seat.

Description

BACKGROUND OF THE INVENTION[0001]1. Technical Field[0002]The present invention related to packaging, and more particularly to a self-priming-pump-equipped packaging bottle.[0003]2. Description of Related Art[0004]With the continuous progress of technology and society, articles for daily use are more and more required to be made with innovation. People select products based on their packaging as much as on their quality. Packaging needs to be not only a simple container, but also a device that has attractive appearance and is convenient to use. Among packaging bottles for commodities, press-type packaging bottles are most extensively used. A known press-type bottles is typically made of a pipe, a spring, and a piston, and has problems related to complicated structure and high manufacturing costs. As an alternative, China Patent No. CN201619795U discloses a pump-type packaging bottle. However, due to the lack of airtightness between the bottle's piston and the bottle's body, the pisto...

AI Technical Summary

Benefits of technology

The design provides a structurally simple, cost-effective, and reliable packaging solution with stable material feeding and aesthetic appeal, preventing the bottle from falling apart and ensuring consistent performance.

Problems solved by technology

A known press-type bottles is typically made of a pipe, a spring, and a piston, and has problems related to complicated structure and high manufacturing costs.

However, due to the lack of airtightness between the bottle's piston and the bottle's body, the piston is prevented from moving upward timely, leading to instable material feeding.

Nevertheless, the negative-pressure packaging bottle tends to fall apart in use because the combination between the pump and the bottle's body is not firm enough.

Thus, the prior-art packaging bottles are not perfect and need to be improved.

Images